Java中的Headless异常 [英] Headless exception in java

问题描述

我听说当我们使用awt或swing时，在创建FRAME时可能会引发未经检查的异常，即无头异常。
我从来没有遇到这个例外。谁能告诉何时抛出此异常？

I heard that when we use awt or swing, while creating a FRAME, an unchecked exception may be thrown which is "Headless exception". I never got this exception. Can anyone tell when this exception is thrown?

推荐答案

Class HeadlessException 描述

在不支持键盘，显示器或鼠标的环境中调用依赖于键盘，显示器或鼠标的代码时抛出。

Thrown when code that is dependent on a keyboard, display, or mouse is called in an environment that does not support a keyboard, display, or mouse.

有关更多详细信息，请 http://docs.oracle.com/javase/7/docs/api/java/awt/HeadlessException.html

For more details http://docs.oracle.com/javase/7/docs/api/java/awt/HeadlessException.html

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